Wood-Burning Sauna Stove Package, 24kW The Harvia Pro 20 SS Sauna Stove Package comes complete with the Pro 20 Sauna Stove, Protective Bedding, Protective Sheath, Chimney Kit, Chimney Extension, and Sauna Stones. This stainless steel stove package offers a satisfying sauna bath experience for sauna rooms from 283 to 706 cubic feet (CF). Designed, engineered, and made in Finland For sauna rooms from 283 to 706 cu. ft.